Cellular South Selects Openwave's Next Gen Service Management Solution

Openwave Systems Inc. (Nasdaq:OPWV), one of the world’s leading software innovators enabling revenue-generating personalized services which converge the mobile and broadband experience, today announced that Cellular South, the largest privately held wireless provider in the U.S., has selected Openwave Integra, a next generation proxy designed to provide open, secure multimedia and multi-protocol service management support. "At Cellular South, our aim is to give wireless consumers top-quality service, including quick, easy access to the Internet from their handheld devices,” said Jim Richmond, director of corporate communications, Cellular South. "Service management solutions, like Openwave Integra, that can grow with our needs and enable new applications, new content types and new protocols are empowering us to implement new ways of doing business and continuously improving service for our customers.” Openwave Integra will help improve service for customers using Cellular South’s new, next-generation Wireless Application Protocol (WAP) portal, which allows wireless users to surf the Internet on their handsets and deploy applications without buying additional products or hardware. The system provides Cellular South users with a more sophisticated experience, including high-quality graphics and increased speed and versatility. Web browsers on the devices of all current and future Cellular South customers will access the Internet through Openwave Integra. "The user’s experience is critical; access and discovery of content and services needs to be fast, secure and easy to use,” said Sean McNeill, head of Openwave's gateway business. "Our Integra solution brings the capabilities of our mobile access gateway to the next level, providing open Internet browsing capabilities that embrace the Web 2.0 experience, and we applaud innovative operators like Cellular South who are embracing opportunities to improve the Internet experience on the mobile device.” Openwave Integra builds on Openwave's unparalleled Mobile Access Gateway expertise and market leadership, enabling revenue-generating content access as part of a personalized content and communications experience. Openwave Integra is a lightweight proxy designed to support multiple protocols, including increasingly http-based traffic. Integra supports advanced protocols quickly and without the need for costly and time-consuming integration. The solution is also designed to rapidly scale and deploy new mobile data services across converging access networks and devices. Integra also gives operators the ability to expand the capabilities of their existing mobile gateway infrastructure with the option of driving new value-added services and monetization opportunities. These optional features include: Openwave OpenWeb, a content reformatting solution; Openwave Mobile Security Suite, a complete security system across messaging, browsing and downloads; and Openwave Contextual Merchandising, a targeted content and advertising solution. About Openwave Openwave Systems Inc. (Nasdaq:OPWV) is one of the world's leading innovators of software applications and infrastructure designed to enable revenue-generating, personalized services, including merchandising and advertising, which converge the mobile and broadband experience across all of a user's devices. As the communications industry intersects with the Internet, Openwave software enables service providers to converge services, increasing the value of their networks by accelerating time to market and reducing the cost and complexity associated with new service deployment. Openwave's unique product portfolio provides a complete range of service management, messaging, location and client technologies. Openwave is a global company headquartered in Redwood City, California. For more information please visit www.openwave.com. About Cellular South Cellular South is diversified mobile communications company passionately committed to helping customers get the most out of their wireless devices and services. The company accomplishes this goal by providing the most reliable and advanced nationwide wireless voice and data network, offering a full range of industry-leading unlimited flat rate plans and through the world's first integrated, interactive online and in-store experience that gives customers easy, simple and convenient anytime, anywhere solutions to all of their wireless lifestyle needs. For more information, visit www.cellularsouth.com. Openwave and the Openwave logo are trademarks of Openwave Systems Inc. All other trademarks are the properties of their respective owners. Cautionary Note Regarding Forward Looking Statements This press release contains forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1943 and Section 27A of the Securities Act of 1933, including, but not limited to, material contained in quotations, increased demand for some of the Company’s products and expectations, plans or prospects for Openwave Systems Inc. that are based upon the current expectations and beliefs of Openwave's management. These forward-looking statements are subject to many risks and uncertainties that could cause actual results to differ materially from those projected. Notwithstanding changes that may occur with respect to matters relating to any forward looking statements, Openwave assumes no obligation to update the forward-looking statements included in this press release. In particular, the following factors, among others, could cause actual results to differ materially from those projected: (a) the ability of Openwave’s products, including Openwave Contextual Merchandising, to deliver expected benefits; (b) the ability to develop and commercialize new products; (c) industry and customer adoption and acceptance of new products; (d) risks associated with the development and licensing of software generally, including potential delays in software development and technical difficulties that may be encountered in the development or use of our software; and (e) increased global competition and pricing pressure on our products. For a detailed discussion of these and other cautionary statements, please refer to the risk factors discussed in filings with the U.S. Securities and Exchange Commission ("SEC"), including but not limited to the Company's Annual Report on Form 10-K for the fiscal year ended June 30, 2007, its Quarterly Reports on Form 10-Q for the periods ended September 30, 2007 and December 31, 2007, and any subsequently filed reports. All documents also are available through the SEC's Electronic Data Gathering Analysis and Retrieval system (EDGAR) at www.sec.gov or from Openwave's website at www.openwave.com. Openwave and the Openwave logo are trademarks of Openwave Systems Inc. All other trademarks are the properties of their respective owners.